spi: fix spi_s3c24xx_gpio num_chipselect

The spi master driver must have num_chipselect set to allow the bus to
initialise.  Pass this through the platform data.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/arm/mach-s3c2410/include/mach/spi-gpio.h

@@ -18,6 +18,7 @@ struct s3c2410_spigpio_info {
 	unsigned long		 pin_mosi;
 	unsigned long		 pin_miso;
 
+	int			 num_chipselect;
 	int			 bus_num;
 
 	void (*chip_select)(struct s3c2410_spigpio_info *spi, int cs);

drivers/spi/spi_s3c24xx_gpio.c

@@ -118,6 +118,7 @@ static int s3c2410_spigpio_probe(struct platform_device *dev)
 	/* setup spi bitbang adaptor */
 	sp->bitbang.master = spi_master_get(master);
 	sp->bitbang.master->bus_num = info->bus_num;
+	sp->bitbang.master->num_chipselect = info->num_chipselect;
 	sp->bitbang.chipselect = s3c2410_spigpio_chipselect;
 
 	sp->bitbang.txrx_word[SPI_MODE_0] = s3c2410_spigpio_txrx_mode0;